Awesome Arthropods
This protective outer layer is a distinct characteristic of arthropods.
What is the exoskeleton?
This is the feeding method of bivalves.
What is filter feeding?
Adult echinoderms have this kind of symmetry.
What is pentaradial?
This abiotic stressor is causing arthropod species, such as the mangrove fiddler crab, to expand their habitat poleward.
What is ocean warming?
This type of animal was the first bilaterally symmetric organism.
What are worms?
This is the process during which arthropods shed their own shell and expand their body size.
What is molting?
This structure secretes the calcium carbonate shell.
What is the mantle?
This internal system is composed of a series of interconnected canals and tube feet.
What is the water vascular system?
An adult oyster can filter this much water in a day, removing DOM and phytoplankton that trigger eutrophication.
What is 50 gallons?
This evolutionary trend benefits the animal by dividing the body into repeating units.
What is segmentation?
This is the earliest larval stage of copepods and barnacles.
What is the nauplius?
Around 80% of all mollusks are in this class.
What are gastropods?
These are the muscular, bulb-like sacs that control hydraulic pressure of the tube feet.
What are ampullae?
This disease is wiping out echinoderms on the West Coast.
What is sea star wasting disease?
These two groups are the only diploblastic phyla.
What are Cnidarians and Ctenophores?
These are the swimming appendages located on the abdomen, used for locomotion and reproduction.
What are pleopods?
This group of brightly-colored marine gastropods shed their shells after their larval stage.
What are nudibranchs?
This class includes urchins, sand dollars, and sea biscuits.
What is Echinoidea?
Many arthropods use this feeding strategy, in which they adapt their diet significantly based on resource availability.
What is opportunistic scavenging?
The development of this feature allowed sensory structures to concentrate at the front of the body.
What is cephalization?
This is when shrimp and crab burrowing activity mixes and oxygenates sediments.
What is bioturbation?
Most cephalopods, except for the nautilus, have these color-changing cells that help them camoflage.
What are chromatophores?
This defense technique, specific to sea cucumbers, involves expelling the internal organs.
What is evisceration?
Some animals use this defense mechanism, in which they store unfired nematocysts from cnidarians to deter predators.
What is kleptocnidy?
The addition of this third tissue layer enabled the development of muscles and complex organs.
What is the mesoderm?